Pipe-joint.



fno. Gemme. y Patented Mar, 2'5, |902.

E. F. osBoRNE.

PIPE JOINT.

(Application led July 26, 1900 No Model.) v

| vIIIIIITHII 1 i. (Mfg UNITED STATES PATENT OFFICE.

EUGENE F. OSBORNE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE OSBORNE STEAM ENGINEERING COMPANY, VOF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PIPE-JOINT.

SPECIFICATION forming part of Letters Patent No. 696,106, dated March 25, 1902.

Application led July 26, 1900. Serial No. 24,886. (No model.)

To @ZL whom it may concern:

Be it known that I, EUGENE F. OsBoRNE, of Chicago, in the county of Cook and State 'of Illinois, have invented certain new and useful Improvements in Pipe-Joints; and I do hereby declarethat the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification. f

This invention jrelates to piping-joints intended to be subjected to high pressures,and particularly designed for piping used for the conveyance ofV ammonia, carbon dioxid, and other iiuid under high pressure.

The invention is herein shown as more particularly designed for the connection of one fitting with another.

In the accompanying drawings, illustrating my invention, Figure l is an axial section of a complete fitting and a fragment of another similar fitting, showingv means for joining the same made in accordance with my invention. Fig. 2 is a cross-section on the line 2 2 of Fig.

- 1. Fig. 3 is an axial section of a fitting-nipjoining a pipe-section to the fitting.

ple which enters into the joint in uniting two fittings. Fig. i is an axial section of a packing-ring which enters also info the joint.

As shown in Fig. l of the drawings, A designates a special fitting which maybe a valve, a T, or other special casting or device. As shown, said fitting is an elbow. The complete fitting is herein shown, and means are illustrated at the upper end of the figure for It will be understood, however, that the present invention has to do only with the form of connection or joint shown at the lower left-hand side of' said figure. Said fitting is shown as connected with alike fitting A, of which lat` ter a fragment only is shown. `Each of' said fittings is provided with a flange A', made integral with the body of the fitting,` and in each end face of the fianges is formed a recess o, the bottom wall of which is concave and formed at an angle of approximately fifteen degrees to a diametric plane. Said recesses a are concentric with the Huid-passages a', extending through said fittings.

passages a they will have close peripheralenfYN gagernent with the Walls of such passage. The extent of the necessary taperv is not sufficient to be appreciable on the drawings. The flange b' of the connecting-nipple B is made of greater thickness at its periphery than at its part adjoining the nipple, and the inclinai tion of the sides of said flange to a diametri@ plane is shown as approximately equal and in opposite directions to that of the inclina-Y tion of the bottoms of the recesses a in the fianges A. Y

C C designate two packing-rings made of any suitable material, which are slipped over theends of said nipple and interposed between said flange b' thereof and the bottoms of the recesses ct in the flanges A of ,the fit ting. The rings'are made of the same diameter as thereeesses a and have convened ends preferably disposed at an angle corresponding to the angle of the faces of the bottom wall of said recesses and the flange b. The said flange b is made of such thickness at its periphery that it enters the recesses a of the fitting fianges. Provision is made in the length of the fitting-nipple with respect to the enlarged parts of the passage o.' to afford a' space between the ends of the nipple and the smaller diameter of said passage to permit the iianges to be drawn ltoward each other by the clamping-bolts A2 to any desired extent in order that the packing-rings may be properly compressed. For the purpose of thus IOO venient or desirable.

under any clamping force that may be applied to the joint through the bolts A2 and that said rings will therefore be acted upon by such clamping force only to compress them against theircontacting walls and cause them to completely fill the spaces provided for them. Beingin aspecial degree forced against the fitting-nipple by reason of the inclined surfaces of the rings and of the walls formed to press against them said rings make particularly close joints with the fitting-nipple, and therefore prevent the passage of fluid to the screw-threads which are beyond them and relieve the latter of all duty excepting that of holding the fianges in place. The tapering of the` outer ends of the fitting-nipple also aids greatly in forming a tight joint in connection with the construction of packing-ring described, and in some instances the peripheral contact between the said nipple and the walls of the passage may be sufficient to prevent any or great leakage in case for any reason the packing-rings should fail.

The joint at the upper part of Fig. l is merely shown as illustrating a convenient means of attaching a pipe-section to the fitting; butit is to be understood that any other` form of joint may be employed as found con- The form of joints shown at such location of Fig. l is, however, made the subject of specific claims in a current application filed by me of even date herewith.

I claim as my invention- 1. The combination with two relativelymovable pipe-fittings having at their adjacent ends orifices forming continuations of the passages, of a fitting-nipple comprising a tube which is contained at its opposite ends within said orifices of the fittings and has close peripheral contact with each of said fittings, a Harige surrounding said tube between the said fittings, packing-rings surrounding said tube and interposed between said fiange and the fittings and means for drawing said fittings together to compress the packing-rings by bringing pressure to bear upon all parts of the external surfaces of said rings.

2. The combination with two relativelymovable pipe-fittings having at their adjacent ends orifices forming continuations of the passages therethrough, of a fitting-nipple comprising a tube which is contained at its opposite ends within said orifices of the fittings, said ends of the tube being slightly exteriorly tapered and having close peripheral contact with the fittings, a flange surrounding said tube between said fittings, packing-rings surrounding said tube, and interposed between said flange and the fittings and means for drawing said fittings together to compress the packing-rings by bringing pressure to bear upon all parts of the external su rfaces of said rings.

3. The combination with two relativelymovable fittings having at theiradjacent ends orifices forming continuations of the passages therethrough and provided in their end faces with recesses surrounding said orifices, of a fitting-nipple comprising a tube which fits at its opposite ends within said orifices of the fittings and has close peripheral engagement with each of said fittings, a fiange surrounding said tube between said fittings and designed to enter at its edges said recesses in the end faces of the fittings, packing-rings interposed between said fianges and the fittings and made of a diameter to fit within said recesses of the fittings, and means for drawing said fittings together to compress the packing-rings.

4. The combination with two relativelymovable fittings having at theiradjacent ends orifices forming continuations of the passages therethrough and provided in their end faces with concave recesses surrounding said orifices, of a fitting-nipple comprising a tube which fits at its opposite ends within said orifices of the fittings, a flange surrounding said tube between said fittings and having concave side surfaces facing the concave bottoms of said recesses, the peripheral margins of said fianges entering said recesses, conical packing-rings 'interposed between said fianges and fittings and designed to fit within said recesses ofthe fittings, and means for drawing said fittings together to compress the packing-rings.

In testimony that I claim the foregoing as myinvention I affix my signature, in presence of two witnesses, this 27th day of June, A. D. 1900.

EUGENE F. OSBORNE.

Witnesses:

TAYLOR E. BROWN, WILLIAM Il. HALL.

IOO 

